The cold form sections Σ are used as secondary steel frame structure of metal construction, decreasing its weight up to 50%, compared to the ordinary hot rolled steel sections (H-Beams, e.g. IPE, IPN etc).

The combination of the particular geometrical characteristics and the high resistance of steel (S 320) that cold formed sections hold, has as a result increased resistance in relation to their weight. For each type of cold form section the topology of bolting holes can be provided so that it is delivered ready for erection, according to the designer's drawings. Having the advantage of customization, cold form sections can be manufactured according to customer's specifications (type, length, holes). Accessories are also available, necessary for the installation of the cold formed sections on the base metal frame (e.g. connection sleeves).   

Advantages 

  • High strength to weight ratio (load capacity). 
  • Decrease of the total weight of the metal base framing.
  • Consistent quality. Production for hot-galvanized, high resistance steel. 
  • Close dimensional tolerances. 
  • Production according to the customers' requirements (forming progress, hole punching, final length). 
  • Marking based on constructional drawing for easier erection.


Dimensions (mm)

Type t H B C Hc He F E
EL Σ 175 1.5 175 60 22 40.8 50 121 27 14
EL Σ 175 2.0 175 60 22 40.8 50 121 27 14
EL Σ 175 2.5 175 60 22 40.8 50 121 27 14
EL Σ 205 1.5 205 60 22 70.8 50 151 27 14
EL Σ 205 2.0 205 60 22 70.8 50 151 27 14
EL Σ 205 2.5 205 60 22 70.8 50 151 27 14
EL Σ 205 3.0 205 60 22 70.8 50 151 27 14
EL Σ 225 1.5 225 70 25 90.8 50 171 27 14
EL Σ 225 2.0 225 70 25 90.8 50 171 27 14
EL Σ 225 2.5 225 70 25 90.8 50 171 27 14
EL Σ 255 1.5 255 70 25 120.8 50 201 27 18
EL Σ 255 2.0 255 70 25 120.8 50 201 27 18
EL Σ 255 2.5 255 70 25 120.8 50 201 27 18
EL Σ 255 3.0 255 70 25 120.8 50 201 27 18


Geometrical inertial characteristics

Type t G (kg/m) A (cm²) I y (cm⁴) W y (cm³) I y (cm) L z (cm⁴) W z (cm³) I z (cm) I w (cm⁶) I t (cm⁴)
EL Σ 175 1.5 4.12 5.28 232.54 26.58 6.64 22.29 5.93 2.06 1949.7 0.0375
EL Σ 175 2.0 5.45 7.03 308.24 35.23 6.62 29.15 7.78 2.04 2538.8 0.0901
EL Σ 175 2.5 6.73 8.77 381.97 43.65 6.60 35.65 9.53 2.02 3090.2 0.1768
EL Σ 205 1.5 4.47 5.72 340.24 33.19 7.72 22.36 6.01 1.98 2774.0 0.0406
EL Σ 205 2.0 5.92 7.62 451.47 44.05

7.70

29.26 7.88 1.96 3615.0 0.0976
EL Σ 205 2.5 7.32 9.50 460.04 54.64

7.68

35.80 9.66 1.94 4403.6 0.1917
EL Σ 205 3.0 8.69 11.36 665.99 64.97

7.66

41.98 11.36 1.92 5141.4 0.3318
EL Σ 225 1.5 4.95 6.39 469.62 41.74 8.57 33.65 7.73 2.30 5025.3 0.0454
EL Σ 225 2.0 6.55 8.52 623.91 55.46 8.56 44.14 10.16 2.28 6568.4 0.1092
EL Σ 225 2.5 8.11 10.64 774.92 68.88 8.54 54.13 12.48 2.26 8025.3 0.2145
EL Σ 255 1.5 5.30 6.83 634.26 49.75 9.64 33.65 7.73 2.22 6499.4 0.0485
EL Σ 255 2.0 7.02 9.11 843.18 66.13 9.62 44.14 10.16 2.20 8497.9 0.1167
EL Σ 255 2.5 8.69 11.37 1047.91 82.19 9.60 54.13 12.50 2.18 10386.0 0.2294
EL Σ 255 3.0 10.36 13.61 1248.49 97.92 9.58 63.64 14.72 2.16 12167.0 0.3975


Sleeve Sigma type component

Cross section A B F Thickness
175 60 30 121 3.0
205 60 30 151 3.0
225 70 40 171 3.5
255 70 40 201 3.5

MARKING OF COLD FORM SECTIONS

  • Cold form section product line is able to mark each profile, according to the designers' drawings (name of client, number of drawing, type of profile, length).
  • The product line is easily programmed, by using NC files.

ELASTRON cold form sections are included in libraries of specialized software of metal construction design.

Agios Ioannis Street, Ag. Ioannis, 193 00, Aspropyrgos , Athens, Greece Τ: +30 210 55 15 000 F: +30 210 55 15 015

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